Home / 15,355.56-21,179.30-10,577.03

Finding the Fourth Proportional to 15,355.56, 21,179.30 and 10,577.03

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Solution

The fourth proportional to 15,355.56, 21,179.30 and 10,577.03 is: 14,588.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355.56 : 21,179.30 = 10,577.03 : x
  2. Step 2: Convert to fraction form
    15,355.56/21,179.30 = 10,577.03/x
  3. Step 3: Cross multiply
    15,355.56x = 21,179.30 × 10,577.03
  4. Step 4: Simplify right side
    15,355.56x = 224,013,932.70
  5. Step 5: Solve for x
    x = 224,013,932.70/15,355.56
  6. Step 6: Final answer
    x = 14,588.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.